Heartburn and indigestion!

Can any of you ladies recommend anything to help with this? I have never had either pre-pregnancy but have been getting both for the past few days. I'm not eating more than normal or anything out of the ordinary but every time I do eat I get it. I feel full, sick and like I have acid sitting high all of the time. It's horrible. The pharmacist told me to take gaviscon but it's not really helping. Any suggestions would be great! Thanks! :)